Practical Application:Inform your email "confidante" ahead of time the number of your Key Value, and give the link to this page. Now, the two of you can send mutual emails that no one will understand! (Just create a coded message, copy and paste it into your email, and send it to your friend. Your friend copies and pastes it, from your email, into the box below...types in your Key Value and presses "Decode Message".)Awe-inspiring!!!